500.part115.rar -

A free, open-source alternative that handles RAR files, although it sometimes struggles with specific recovery records found in WinRAR files [1]. 3. Extraction Guide

Open 500.part001.rar (or 500.part001 if extensions are hidden) using WinRAR or 7-Zip [1].

Ensure all parts ( 500.part001.rar , 500.part002.rar , ... 500.part115.rar ) are in the same folder [1].

If it asks for a part 116, the archive is incomplete. To give you more specific instructions, could you tell me: Do you have all 115+ parts of this archive? What error message are you seeing, if any?

Multi-part files are often password-protected. Ensure you have the password from the source.